Update demo ng-select version.
Update demo ng-select version.

benelliott/angular2-select,basvandenberg/ng-select,basvandenberg/angular2-select,benelliott/angular2-select,benelliott/angular2-select,basvandenberg/angular2-select,basvandenberg/ng-select,basvandenberg/ng-select,basvandenberg/ng-select,basvandenberg/angular2-select,benelliott/angular2-select